K.F.
The Texas Rangers Museum is in Waco as well as the Dr. Pepper Museum. It was quite a number of years ago but I don't remember either being pricey. Go to the State of Texas website, I bet they have their Texas Travel Guide online these days, should tell you everything there is to see and do in and around Waco. There are a ton of small towns down there, you may find something that is not in Waco proper.
http://www.traveltex.com/pg/city.aspx?id=ba7a569a-9b08-4d...